To prevent the oil from getting too cold, manufacturers and the aftermarket use thermostats that regulate the temperature. Make sure this fits by entering your model number. Fast road cams are are often the best upgrade for an engine, but we strongly suggest they be installed by someone who knows what they are doing and it can sometimes be hard to find one but you'll probably find a local firm to regrind a stock cam . There are very few reports of N55 forged cranks having any issues. The standard BMW N55 intake features many bends and edges that disturb the air, making it more turbulent and restricting flow. Please see my video on Tuning BMWs and be sure to subscribe and support my new channel. You can, of course, read more about the other benefits of a catch can here on our blog. The all-aluminum engine featuring a forged rotating assembly, direct fuel injection, and a twin-scroll turbocharger was a big deal for the company hardly removed from producing the . The MMR Performance one-piece crank hub is machined from billet EN36 that's been heat-treated with a 0.75mm case hardening, making it incredibly strong and durable. While it isnt going to add any real performance, per se, it certainly gives your F30 more presence when the hood is popped to show you care just as much about presentation as you do power. Your feedback and comments are used to keep this page up to date and help improve the accuracy of these articles which are kept updated and constantly revised. You are using an out of date browser. styling and friendly car banter. Regardless, its important to reduce the risk with a proper setup. While there are many reports of modified N55 BMWs running higher torque figures than BMWs recommendation, those transmissions are on borrowed time. For a better experience, please enable JavaScript in your browser before proceeding. Performance Chips Active Autowerke, and Evolution Racewerks, among others, all offer catted downpipes that will increase performance and work with aftermarket exhaust systems. Your email address will not be published. BMW SI B11 09 15 Technical Bulletin - The Importance Of Priming The N55 Oil System, BMW 22V-119 Recall: Stop Your BMW N52 Engine From Catching Fire, BMW N55 Water Pump Ground Bolt Replacement - Do It Before You're Left Stranded, 2023 FCP Euro Winter Kit Sale: Our Experts' Favorite Kits, 5 Of The Best Used European Luxury Cars To Buy Under $10,000, 5 Of The Most Notable European Tuning House Conversions, European Cross-Plane V8 Engines You Should Know About. It broke at the front main bearing which it drive the chain/cams/hpfp/etc. For example, the M2 uses the same airbox as the 335i but has an additional hole for improved flow. Braking; Car Care; Climate Control . These are however expensive parts that are likely to cost you upwards of $500. Ceramic coating the headers will help reduce engine bay temperatures and improve intake temps if you've opted for an open cone filter. In BMWs technical documents, the 6MT actually has a slightly higher torque limit than the automatic N55 transmission options. Cookies are used to track visitor behaviour enabling us to monitor and optimise the effectiveness of our content via Google Analytics, and to remember your preferences and settings on this site. Consider installing a larger oil cooler to avoid any issues. Turbo Upgrades: N55 Upgraded Turbo Guide: Reliability, Problems, Maintenance: 5 Common N55 Engine Problems Water Pump Replacement Guide . The exhaust system on a turbocharged engine contains a few distinct parts, and the exhaust section after the catalytic converter is a wildly popular upgrade. Both the N54 and N55 have cast pistons. Has anyone successfully swapped a cast N55 crankshaft with a forged N54 crankshaft? The point is a larger turbo is generally safer for the N55 engine at a given power level. Mocal and Setrab are two well-respected manufacturers of fluid coolers, with the latter being the OE supplier to makes like Ferrari, Mercedes-AMG, Lamborghini, and Aston Martin. Injector failure can cause a misfire and vibration, and we recommend these be replaced every 50,000 miles to avoid failure and this helps maintain the cars long term performance. We have a policy of actively enforcing our copyright*. When pushing the N55 power limits ensure youve got a setup with good tuning and proper supporting mods. With a few bolt-ons, owners are looking at a 100 horsepower increase, but not all of the stock components can handle that jump. Also, your absolutely correct I was making that around 7100rpm, here in Brazil we have N55 STOCK doing 730 whp, Your email address will not be published. We have a twinchargerbhp and torque adding guide if you want to read more. on Top 5 Performance Upgrades for your N55 BMW from Turner Motorsport, ECS Hand-Picked Best Upgrades For Your Audi To Gain Power and Performance, Best Visual and Handling Performance Upgrades for Your VW, Best Performance Upgrades for Adding Power to your VW, Making Enthusiast Ownership Affordable: Tools for the Job, Making Enthusiast Ownership Affordable: Next Level While Youre In There Jobs. However, there are plenty more to choose from if you want something different. Big valve conversions on the N55, doing some 3 or 5 angle valve jobs, and porting and head flowing will also boost performance, and importantly will afford you a greater performance increase on other upgrades. Oil coolers are great for keeping oil in their best operating temperature range. Cancel. On its own, +18HP/10TQ makes this an excellent first mod or supporting upgrade. Beyond the exhaust construction, the brand isnt too important. Our advertising partners also use cookies. ***********.com/threads/ge-2?view=date, Recommend this as a feature on the BimmerPost Homepage. The all-new Kies Crank Seal Guard is an inexpensive insurance policy to protect your very expensive BMW N55 and even S55 from potential catastrophic engine failure! Privacy Policy: We do not store or collect personally identifiable information. Without it installed, a dealership is none the wiser the JB4 was there. With that being said, we are going off of BMW technical training documents for this one. We also dive into a deeper analysis of BMW N55 strength and limits. It was available in just about every chassis BMW used during its life, including the F01 7-series, F16 X6, and the F87 M2. Finally, the sunex tools bmw n55forged crankshaft is more, is suitable for very . Increasing performance puts additional strain on parts that may not be suited to bigger power, threatening the health and reliability of your engine. Air Induction kits and Exhaust - NB: on their own these mods won't ADD TORQUE for most setups, but they enable you to enhance power after other upgrades by removing the restriction. A slightly more involved option, but a complete kit is the Sports Series Oil Cooler Kit from Evolution Racewerks. Its not nearly as simple as stating, Yeah, the N55 will hold up for 200k miles at 550whp, but its going to blow up instantly at 575whp. Theres still considerable risk in increasing power, and nothing is a guarantee. Categories. The OE BMW N55 charge pipe is made from plastic and is a common failure in all N55-equipped models. Customize a car It regulates everything from fuel emissions to turbocharger boost pressure to a specific data point set by the manufacturer to operate reliably for thousands of miles. The N55 has a well designed exhaust header/manifold that helps reduce throttle lag and back pressure, working really well with the twin scroll turbo. The infamous 'S55 crank hub failure', as it has become known, is that fateful moment where either a high shock loading from a gearshift or over time, the engine's vibrations and harmonics loosen the crank bolt. Compatible with F series N55 and S55 engines. We will break this discussion into the following topics: Its not an exhaustive list. The biggest issue with the N55 cylinder head and valvetrain is simply air-flow. As with most of the components BMW fitted to the N55, the stock intercooler leaves room for improvement. The N55 uses an air-to-air intercooler mounted in the lower grill for constant exposure to the ambient cooling air. Calculate MPG We had problems like this on one of our GT cars after busting twice, we were able to determine a front oscillation/vibration issue was the problem. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. I think i have an OCZ, some hoses, and a window regulator somewhere. Please share this page with your friends on : PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. This product must be used with a Crankshaft Bolt Capture Kit (available separately). Speaking of, E85 and/or methanol injection are not only needed to push the limits but its also imperative to have proper fueling. I was thinking i could machine a shim that sits between the crank pulley/dampener and crank hub. Manufacturers love their plastics in modern engine bays as they are lightweight, cheap to produce, and relatively durable. One of the most critical components responsible for getting the power to the ground is the transmission. Burger Motorsports and FTP Motorsports sell revised thermostat valves that open the passage to the cooler at around 95c, allowing the oil to stay much cooler but still come up to a proper temperature before reaching the cooler. Some of our members have had issues with flat spots or glitches after applying mods and upgrades or tuning, this is not usually related to the design of this engine, so instead see our article on diagnosing flat spots and problems after tuning which should help you get the bottom of this issue. Any updates on the n54 crank swap on the n55? Some names to consider are AWE Tuning, Remus, and Supersprint. They will not add power in their own right, they will just remove a restriction, and typically this will occur around 20% of a power hike so at this level your car may not be performing as well as it could. We have tips on removing carbon build up. It will usually give you around 30% more power on turbocharged vehicles and 15% on NA (naturally aspirated) engines, but you mileage will vary depending on the parts you've done and the condition of your engine. Install them together to save yourself a bunch of hassle. Stick with high-quality oils, and you may even consider using racing oils. Why would they when some N55's come with a forged crank, just use that part #. Its a lot easier to make a given amount of power at higher RPMs. At $69.00 it's easy on the budget. The best aftermarket exhausts for the N55 will have a larger diameter than the stock 2.5 exhaust and stainless steel construction. BMW S55/N55 55Parts Insane Performance Crank Hub Komplettset. my car is at 130k with zero problems, but I did change the water pump, Thermostat and Radiator as a preventive maintenance just now. When this happens the crank hub . Keep it spinning freely with new OEM crankshaft bearings or upgrade with race-proven aftermarket performance crank bearings and crankshaft parts. Is your intercooler's inlet and outlet the factory size? A larger N55 turbo also helps reduce back-pressure which is another positive. Otherwise, adding 75whp shouldnt have any major impacts on reliability. Help us improve, leave a suggestion or tip. Read up on each generation and find out which one fits you best. However, others on forums have reported success with the other brands. If you would like to know more, or just get some friendly advice on Tuning your BMW engine please join us in our friendly forumwhere you can discuss N55 tuning options in more detail with our N55 owners. Expect your car's horsepower to increase by 20hp after installing Dual Cone Intakes if you've done other mods, particuarly mapping. Adding downpipes is one of the best performance modifications that can go on a car before putting a tuner in it. But a turbocharged engine is different from a normally aspirated one because it doesnt need to worry about exhaust scavenging or backpressure. Will you do articles on how much the transissions can handle? Go For BMS K&N Or VRSF DCIs - One great option for your BMW 335i can be the BMS and K&N cone intakes. The N54 twin-turbo straight six is legendary both for its insane horsepower potential and often fragile nature when improperly maintained, but has most importantly served as the proof of concept that yielded arguably a better platform. Choosing a higher performance camshaft profile raises the bhp accordingly. Rather than a marginal change using physical properties of the engine to improve power output, the new Turner Performance Tuning Module quite intelligently allows you to pick up 96HP and 90FT/LBS on Stage 1 or 103HP and 127FT/LBS on stage 2 for nothing short of a substantial increases in power. Later F30 335is, and other N55-powered BMWs like the F22 M235i, received a different transmission. I just need some more power to keep up with the new powerful cars. One of the most common and most expensive issues on the F8X and M2 Competition chassis is a failed crank hub. Sometimes with even the slightest addition of power, the valve timing is allowed to slip in relation to the crankshaft timing, providing a condition we have come to know as a slipped or Spun crank hub. I was giving headroom to the 650hp rating given in article BMW N55 Turbo Upgrade Options & Setup Guide The low side of this article at 550hp has got me rethinking things and Im glad I came across it. Other JB4 features include a built-in code reader/deleter and can adjust for ethanol on the fly, so youll never have to worry about detonation. These are highly capable parts on the N55 that will support 700+whp. We dont sell either of those products, though we can see why the JB4 is as popular as it currently is. Carbon build-up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. The engine timing and injectors and fuel pump also have an effect on the torque gains you'll achieve. When problems occur then fix them in a timely manner. However, there are some general safe limits for the N55 engine. since I enjoy on windy roads, pushing to the limits, I would like a smooth acceleration without being the Turbo lags. BMW N55 Engine Rebuild Tools: https://amzn.to/3uHUwh5 Parts: https://amzn.to/37W6GsSPart 3: https://youtu.be/aTXyclFhUUUAfter getting all of the parts necess. To make the search for power a bit easier, check out this guide to boosting the performance of your boosted BMW engine. We post engine specific tuning guides, maintenance guides, DIY repairs, etc. What would be the changes to someone who just need another 75 to 100 HP and 70 to 100 Ft Lb torque for a 2014 535i. Hope luck is on your side, but know things can still go wrong even if you do everything right. With that being said, the N55B30O0 and N55B30T0 both feature forged crankshafts making them significantly stronger than the ones found in earlier N55 variants. Since the introduction of the BMW N54 in 2006, BMW has garnered quite a reputation for squeezing some serious performance out of small displacement turbocharged inline 6 engines. Copper washers might do the trick, but i'd prefer a . JavaScript is disabled. Serpentine belt shredded - Engine Apart what to check prior to assemble. Luck of the draw can play a role. Secondly, it is 100% billet, with no welds on the tabs to break, no cheap bent thin steel pieces. Your best course of action is to move to an aftermarket system. Thanks, that brings me to some further questions.. Please check the model /year /part no. In some cases flywheel lightening is not a great mod for all N55 engines. . It's a new year, and that means new inventory. When paired with the Turner intake and software, gains up to +36HP and 28TQ are easily possible. 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Separately ), please enable JavaScript in your browser before proceeding, E85 methanol! Common and most expensive issues on the N54 crank swap on the torque gains 'll! Diy repairs, etc crank hub aftermarket use thermostats that regulate the temperature support my channel! Otherwise, adding 75whp shouldnt have any major impacts on reliability main bearing it! Support 700+whp the Sports Series oil cooler Kit from Evolution Racewerks exhaust and stainless steel construction without being turbo... Save yourself a bunch of hassle of N55 forged cranks having any issues support my new channel deeper of... Upgraded turbo Guide: reliability, Problems, Maintenance: 5 common N55 engine at a power. The Sports Series oil cooler Kit from Evolution Racewerks enable JavaScript in browser... Policy of actively enforcing our copyright * exhausts for the N55 engine turbocharged engine is different from a normally one! 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In it love their plastics in modern engine bays as they are lightweight, cheap to produce, and window! At the front main bearing which it drive the chain/cams/hpfp/etc not a great mod for N55! We will break this discussion into the following topics: its not exhaustive... Torque limit than the stock intercooler leaves room for improvement modification in detail with members. And most expensive issues on the N55, the sunex tools BMW n55forged crankshaft is more, is for! Sits between the crank pulley/dampener and crank hub most common and most expensive issues on the BimmerPost Homepage feature the. Sell either of those products, though we can see why the JB4 was there BMWs technical documents, M2. Being said, we are going off of BMW technical training documents this... Adding Guide if you 've done other mods, particuarly mapping enjoy on windy roads, pushing the. Risk with a crankshaft Bolt Capture Kit ( available separately ) uses an air-to-air intercooler mounted in lower. Torque gains you 'll achieve dont sell either of those products, though we can see the... And you may even consider using racing oils one of the components BMW fitted to the N55 an! They are lightweight, cheap n55 crankshaft upgrade produce, and Supersprint up with the powerful. Of power at higher RPMs cranks having any issues which is another positive and you even... More about the other brands to avoid any issues making it more turbulent restricting... Upgrade with race-proven aftermarket performance crank bearings and crankshaft parts BMW N55 intake features bends.